Intro to the Human Body UNIT 1 Flashcards
Excretory/Urinary System (FUNCTION)
Filters waste from the blood
Lymphatic/Immune System (FUNCTION)
-Picks up excess water and delivers back to cardiovascular system.
-Fights foreign invaders.
Endocrine System (FUNCTION)
Control system - Homeostasis
-Uses hormones
S. NEEDS (3)
NUTRIENTS - the substances needed for structure and function.
Positive Feed Back System
- not common
- It enhances the stimulus, if it’s an increase, it will increase it up to a point.
Deep
Towards the inside
Dorsal Cavity
A. Cranial Cavity
- skull/facial – brain
B. Spinal Cavity/Vertebral Cavity
- composed of vertebrae – spinal cord
Reproductive System (FUNCTION)
Reproduce
Anterior/Ventral
structures that are in front
How many organ systems are there?
11
Lymphatic/Immune System (ORGAN)
Lymph nodes, lymph vessels, lymph, spleen.
Nervous System (ORGANS)
Brain, nerves, spinal cord
Cardiovascular System (ORGANS)
Heart, blood vessels, blood
Reproductive System (ORGANS)
MALE: Testis, vas deferens, prostate gland, urether
FEMALE: Uterus, ovaries, fallopian tubes
Abdominal Cavity
Much larger
75%-80%
Superior
structures that are above
LEVELS OF ORGANIZATION
Atom, molecules, cells, tissues, organs, organ systems, organism
Endocrine System (ORGAN)
Testis, ovaries, pancreas, pituitary gland, thyroid gland, parathyroid gland, thymus and adrenal glands.
Coroneal Plane
Divides structures into anterior & posterior halves
S. NEEDS (2)
OXYGEN - need to produce energy (ATP)
Digestive System (ORGANS)
Stomach, intestines, liver, mouth, pharynx, esophagus, pancreas, gall bladder
S. NEEDS (5)
ATMOSPHERIC PRESSURE
- Are the molecules hitting your body.
- At high altitude with less pressure, it’s harder to take in O2.